As per the tech bulletin:
Up/Down rudder handle - The weight and mass of the larger rudder has caused some rudder control handles to fail. This appears to have been primarily a materials issue with the original handles, but we have taken the issue more seriously and wanted to prevent any similar failures from occurring. Shortly after initial production started, we switched to a through-bolted handle that can absorb many times the expected loads. Some technique is still required to easily raise and lower (see tech notes below). Older handles have a brass insert and set screw. Newer handles have a allen bolt threaded clear through the control arm and into the opposite side of the handle. This update kit includes a new handle, bolt and control arm. This requires re-fitting the control arm and control lines inside the hull.
Kit# 81035011